A True Hermaphrodite Chimera Resulting from Embryo Amalgamation after in Vitro Fertilization
- 15 January 1998
- journal article
- case report
- Published by Massachusetts Medical Society in New England Journal of Medicine
- Vol. 338 (3) , 166-169
- https://doi.org/10.1056/nejm199801153380305
Abstract
High rates of successful pregnancy after in vitro fertilization depend on placing more than one embryo into the mother, a practice resulting in a 30-to-35-fold increase in dizygotic-twin deliveries.1 Increased frequencies of twin-associated anomalies might also therefore be expected. Chimerism, the presence in a single person of cells derived from two or more zygotes, is one such rare anomaly. It is usually ascertained through anomalous blood-grouping results or (for XX/XY chimeras) sex reversal or intersex.Keywords
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